Motor fan



J. BRZOZOWSKI.

MOTOR FAN.

APPLICATION FILED AUG-4. l92l.

PatentedAug. 15, 1922.

2 SHEETS-SHEET I.

J. BRZOZOWSKI.

MOTOR FAN. APPL ICATION FILED AUG-4, 1921-- 1,426,256. Patented g. 15, 1922.

2 SHEETS-SHEET 2.

F'IQZE FIG. 3.

Jfirzazaweskw' JOSEP'H eazbzowsrr, or l aitlvsrwrma;

Moron Flier.

Tonl l wiwm it may .007106'7721.f1. r vBe it known that I, Josn'rl-r BRzozowsKI, a citizen of Polanch; residing at VVilkes-Barre in the county of Luzerne aricLState of Pennsylvania have invented certain new andusejful Improvements'in Motor Fans of which the following is a specification. I

.The primary object of thepresent lnvention' is the provision of. a spring motor for air circulating fans and an arrangement for easily and quickly starting and stopping theoperation of the device. 1

A further object of the-invention is to provide an easy and inexpensive means for starting and stopping a-fan motor withoututilizingthe mechanism by sudden strains, the device providing for the gradual stopping of the motor which is therafter readily nis mg; L 7

With these general ob ects 1n vlew and started by releasing the stopping mechaothers that will appear as the nature of the v invention is better understood, the samecon sists in the novel contsruction, combination and arrangement of parts'hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appendedclaims. .7

In.the, drawings forming a partof this application and in which liketdesignating characters refer .to corresponding parts throughout the sveral views- Figure 1 is a front elevation of a motor fan provided with my invention, 7

Figure 2 is a side elevation thereof, Figure 3 is an enlarged vertical sectional view taken upon line IIIIII of Figure 2 Figure 4 is a rear elevation of the upper portion of the stand and the casing shown in Figure 2,

Figure 5 is a top plan view of the motor removed from the casing, and

Figure 6 is a perspective view of the stopping and starting mechanism detached.

Referring more in detail to the drawings, my stopping and starting mechanism is preferably employed with a spring motor such as 10 herein illustrated mounted within a chamber 11 in the upper end of a standard 12 and in a casing portion or head 13 at the top of said standard. A circular plate 14 closes the rear side of the casing 13 while the power shaft 15 of the motor 10 projects through the front side 16 of said casing and is provided with a usual form of air circulating fan 17 while a wire guard 18 encircles s 'eafiteear (a nee-eraser. aten ed 51 g, 1 Application filed Au usta, 1921': .Seriaf No. 489,751;

see:

the fan and is attached by screws 1 9'to'the v rriEQ M outer surface of thehead13; The motor 10 is seated upon and suitably secured to the bottom.20 of the; chamber 1 1. n V

Thevmotor l0 includes'a coil spring 2 1 hajvingone; end anchored as at 22 and its opp'o site end securedto a shaft23' carried by the motor frame and having a squared extension 24 projecting. through an opening 25 in" the? cap 14 for the i i it motor spring'21.

purpose of rewinding' the A gear 26upon theshaft23'meshes witlija' toothed'hub 27' of a gear 28 which turn meshes: with a toothed gear 29 upon asliaft'{ 30 while a gear 31- upon thesh'aft 30 meshes 34 of the fanJshaft'15L r It will :b'eiundersto(id-that whenthes'p-ring named gear meshing with a toothed portion- 21 is wound by means of a keytu'rning the, I

shaft 23,:the release of the spring 2'1 causes the train of gears to operate in -thejusiia l manner; a spring motor fan turning the shaft'15 upon the outer end of which the fan] 17 issecu'redi The-fan 17 will their con tinue' to turnuntil the mrnit'ar-li'asrundown" or its operationis' insomenianner inter rupted. Theshaft 15 is alsop rov'idedwith aregulator 35 of the usual construction em ,A shaft 36- 1 is transversely turaaiea through the frame of diameter-10 and-is provided with a stop hook 37 projecting therefrom with a triangular inwardly pro- 'jecting end 38 adapted for engaging between the teeth of the gear'31 and stopping rotation thereof when the shaft 36 is turned hook end 38 and wire end 40 may be brought into simultaneous engagement with the gears 31 and 33 respectively for stopping the operation of the device. A partial return rotation of the shaft 36 by means of the lever 41 simultaneously releases 'saicl hook and brake wire thereby permitting the spring 21 to continue turning the fan 17.

Both of the end members 38'an d 40 are nor to the limit of its movement in one direction. 7.

slot 42 in the rear plate 14 whereby the I mally out of engagement With the gears 31 and 33 respectively and upon moving the lever 41 for stopping the operation of the device, the brake Wire end 40 engages the side of the gear 33 for retarding the movement of the device prior to the engagement of the end 38 With the teeth 31, entirely stopping the turning of the gears.

The complete operation of the device Will be fully understood from this detailed description thereof, the starting of the motor being the opposite, operation from that of stopping the same, the stop hook end, 38 being disengaged from the gear 31 prior, to the frictional release of the brake Wire a0 and whereby the motor is gradually permittedto start its operations similar to the gradual stopping of the motor heretofore fully explained.

The standard 12 is mounted upon any suitable base such as as and While the form of the invention herein shown and describedis What is believed to be the preferred embodiment thereof, it is nevertheless to be understood that various forms, modifications and arrangements o'f'theparts may be made Without departing from the spirit and scope of the invention as claimed.

, I claim r r v 1. A spring motor for fans including a spring and a plurality of train ofigears operatively connected thereto, a transverse shaft adjacent said gears, a stop hook projectingv from said shaft with an angular end portion adapted for engaging between the shaft of one of said gears, a brake Wire projecting from said shaft at a different angle from the stop hook With an angular end portion adapted for frictionally engaging another one of said gears during the stopping operation.

jecting from said shaft With an angular end portion adapted for engaging between the teeth of one of said gears, a brake Wire projecting from said shaft at a different angle from the stop hook with an angular end portion adapted for frictionally engaging another one of said gears prior to the engage ment of the stop hook with the other gear, and an angular lever projecting from. said shaft whereby the shaft is adapted for partial rotation in opposite directions during the starting and stopping operation.

3. In a spring motor having gears, a transverse shaft journaled in parallelism Withthe axes of said gears, an angular lever projecting from the shaft adapted for imparting partial rotation to the shaft, a stop hook and brake Wire projecting at different angles from said shaft adapted for engagement with and release from adjacently positioned, gears, whereby the starting and stopping of the motor is effected at will. l

mounted, a partially rotatable" transversely journaled parallel to said shafts, a stop hook and brake Wire projecting at different angles from said rotatable member W1th the brake Wire V111 advance of the stop hook adapted for frictionally engaging the side of one of said gears prior to the engagement of the stop'hook With- 

